26431880

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:350

約数の個数: 64

約数和(自身を含む): 62052480

約数和(自身を除く): 35620600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 71, 82, 142, 164, 205, 227, 284, 328, 355, 410, 454, 568, 710, 820, 908, 1135, 1420, 1640, 1816, 2270, 2840, 2911, 4540, 5822, 9080, 9307, 11644, 14555, 16117, 18614, 23288, 29110, 32234, 37228, 46535, 58220, 64468, 74456, 80585, 93070, 116440, 128936, 161170, 186140, 322340, 372280, 644680, 660797, 1321594, 2643188, 3303985, 5286376, 6607970, 13215940, 26431880]

約数ペア:

[(1, 26431880), (2, 13215940), (4, 6607970), (5, 5286376), (8, 3303985), (10, 2643188), (20, 1321594), (40, 660797), (41, 644680), (71, 372280), (82, 322340), (142, 186140), (164, 161170), (205, 128936), (227, 116440), (284, 93070), (328, 80585), (355, 74456), (410, 64468), (454, 58220), (568, 46535), (710, 37228), (820, 32234), (908, 29110), (1135, 23288), (1420, 18614), (1640, 16117), (1816, 14555), (2270, 11644), (2840, 9307), (2911, 9080), (4540, 5822)]